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 Post subject: Funny lights??
PostPosted: Mon Oct 05, 2020 6:18 pm 
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Board Sponsor & SL6 Racer

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 6738
Location: Waynesboro, Pa.
Car Model: 65 Valiant 2Dr Post
Friend is working on a 69 Dart and when he hits the brake pedal the parking lights come on up front. This sounds like some sort of a grounding issue to my pea brain. But where is a good place for him to start the search?

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 Post subject: Re: Funny lights??
PostPosted: Mon Oct 05, 2020 7:16 pm 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7703
Location: SW Washington
Car Model: 1965 Plymouth Barracuda, 1954 Dodge C1-B8
Turn signal switch is where these circuits come together.

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 Post subject: Re: Funny lights??
PostPosted: Mon Oct 05, 2020 7:35 pm 
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Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 3218
Location: Indianapolis
Car Model:
When I put the 83 D150 back together after having it apart down to the frame rails, I had that exact same issue. Step on the brake pedal and the front parking lights would light.
I have slept since then, but it was something in the rear wiring harness I had two plug in connectors swapped and plugged in wrong.


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 Post subject: Re: Funny lights??
PostPosted: Mon Oct 05, 2020 7:39 pm 
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Turbo EFI
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Joined: Mon Jan 12, 2015 5:55 am
Posts: 1109
Location: Brightwood, VA
Car Model: 1965 Plymouth Belvedere I
It could also be a messed up rear tail lamp bulb (Brake/signal). I have seen the filaments short between the dim (park) and bright (signal) ans cause weird issues like that.

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Strive for Excellence, not Perfection.
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 Post subject: Re: Funny lights??
PostPosted: Tue Oct 06, 2020 3:08 am 
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Board Sponsor & SL6 Racer

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 6738
Location: Waynesboro, Pa.
Car Model: 65 Valiant 2Dr Post
Thanks guys, I'll pass those things along.

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2 Mopars come with Spark plug tubes. One is a highly refined, world class, racing machine. The other is a 426 CI. boat anchor!
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 Post subject: Re: Funny lights??
PostPosted: Tue Oct 06, 2020 7:02 am 
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Turbo EFI
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Joined: Mon Jan 12, 2015 5:55 am
Posts: 1109
Location: Brightwood, VA
Car Model: 1965 Plymouth Belvedere I
I also had a similar issue on a 66 Fury. When a bulb was put in the brake light socket, it would twist the socket contacts around (broken locator tab). The bulb contacts shorted across the two socket contacts. That was a difficult one to figure out.
jus sayin....

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-MattMan
Strive for Excellence, not Perfection.
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